The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2012
Filed:
Apr. 16, 2009
Paulette N. Hazin, Sugar Land, TX (US);
Frederick Merrill Galloway, Tomball, TX (US);
John S. Ledford, Sugar Land, TX (US);
Andy H. Nuyen, Houston, TX (US);
Paulette N. Hazin, Sugar Land, TX (US);
Frederick Merrill Galloway, Tomball, TX (US);
John S. Ledford, Sugar Land, TX (US);
Andy H. Nuyen, Houston, TX (US);
Saudi Basic Industries Corporation, Riyadh,, SA;
Abstract
A one-step vapor phase oxidation process produces an unsaturated carboxylic acid, such as acrylic acid or methacrylic acid, from an alkane, such as propane or isobutane, with a mixed metal oxide catalyst and an excess of alkane relative to oxygen. The unreacted alkane and the byproduct alkene are recycled to the reaction zone without separation. Overall yield and productivity of the unsaturated carboxylic improves for such a process. An analogous method for the preparation of unsaturated nitrites is also disclosed.